Question 1029

Rumor Has It

A 10,000-node fleet distributes configuration through an epidemic broadcast (each node relays to a few random peers) instead of one coordinator pushing to every node directly. Which statements about that choice are correct? Select all that apply.

A

Total bytes on the wire go down, because the design guarantees each node receives the update exactly once

B

Each node must carry the complete membership list for the epidemic to reach the whole fleet

C

Reaching every node takes a number of rounds that grows logarithmically with fleet size at a fixed fanout

D

The protocol keeps delivering when random nodes fail, since no single node sits on a required path

E

Every node applies updates in the same sequence, so gossip supplies a total order for free